Answer:
first one
Step-by-step explanation:
uh yeah the first one because it the second one to the original problem
Answer:
d=6
Step-by-step explanation:
move all terms that don't contain d to the right side and solve.
Answer:
7
Step-by-step explanation:
5x-x=28 The dad is 5 times as old and the difference in their ages is 28years.
4x=28 Simplify and divide.
x=7
Last one is your answer
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